Marantz 2330 Service Manual

Page 2

TABLE OF CONTENTS

Section Title ' Page
1. P.W. BOARDS ...................................................................... 1
2. TEST EQUIPMENT REOUIREO FOR SERVICING ................................................ I 1
3. AM ALIGNMENT PROCEDURES .......................................................... 2

3.1 AM IF Alignment ............................................................... 2
3.2 AM Frequency Range and Tracking Alignment ............................................ 2
3.3 AM Signal Strength Meter Alignment .................................................. 2
4. FM ALIGNMENT PROCEDURES ........................................................... 2
4.1 FM Frequency Range and Tracking Alignment ............................... ' ............. 2
4.2 Stereo Separation Alignment ....................................................... 2
4.3 Muting Circuit Alignment ................................... . . . ..... . . . . . . ......... 2
5. DOLBY FM DECDDER CIRCUIT ALIGNMENT .............................................. '. . . . 2
5. AUDIO ADJUSTMENT ................................................................. 3
6.1 Automatic Voltage Regulator Adjustment ............................................... 3
6.2 Main AmplifierDC Off-set Alignment .................................................. 3
6.3 Idle-current Adjustment ........................................................... 3
6.4 Main Amplifier DC Off-set Re-alignment ................................................ 3
6.5 Phono Amplifier Adjustment ....................................................... 3
1. VOLTAGE CONVERSION FOR EUROPEAN MODEL .............................................. 3
8. DIAGRAMS ........................................................................ 4
8.1 Connection Diagram ~ U.S.A. 8: CANADA ............................................... 4
8.2 Connection Diagram ~ EUROPE ..................................................... 6
83 Block Diagram - USA. 81 CANADA .................................................. 8
8.4 Block Diagram - EUROPE ......................................................... 10
9. SCHEMATIC DIAGRAMS AND COMPONENT LOCATIONS .......................................... 12
9.1 FM Front End Circuit Board P100 .................................................... 12
9.2 AM Tuner Circuit Board P150 ....................................................... 13
9.3 FM IF Amplifier Circuit Board P200 .................................................. 14
9.4 MPX Stereo Decoding Amplifier Circuit Board P300 ........................................ 16
9.5 Phono Amplifier Circuit Board P400 .................................................. 17
9.6 Dolby FM Decoder Circuit Board P600 - U.S.A. 8i CANADA .................................. 18
9.7 Main Amplifier Circuit Board P700 ................................................... 19
9.8 Power Supply and Protection Relay Circuit Board P800 ...................................... 20
9.9 Pre and Tone Amplifier Circuit Board PE01 .............................................. 21
9.10 Buffer Amplifier Circuit Board PH01 .................................................. 22
9.11 Function Lamp Circuit Board PYOi .......................... , ......................... 23
9.12 Dial Lamp Circuit Board P201 '
9.13 Hi/Low Filters, Loudness and Speaker Switches Circuit Board PUOI ............................. 24
9.14 Tape Copy, MPX Noise Filter, Multipath and FM Muting Switches Circuit Board PTOi ................. 25
9.15 FM Balun and Muting Level Circuit Board PC01 ........................................... 25

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